1 files changed, 82 insertions, 0 deletions
diff --git a/includes/diff/ArrayDiffFormatter.php b/includes/diff/ArrayDiffFormatter.php
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+++ b/includes/diff/ArrayDiffFormatter.php
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+<?php
+/**
+ * Portions taken from phpwiki-1.3.3.
+ *
+ * Copyright © 2000, 2001 Geoffrey T. Dairiki <dairiki@dairiki.org>
+ * You may copy this code freely under the conditions of the GPL.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup DifferenceEngine
+ */
+
+/**
+ * A pseudo-formatter that just passes along the Diff::$edits array
+ * @ingroup DifferenceEngine
+ */
+class ArrayDiffFormatter extends DiffFormatter {
+
+	/**
+	 * @param Diff $diff A Diff object.
+	 *
+	 * @return array[] List of associative arrays, each describing a difference.
+	 */
+	public function format( $diff ) {
+		$oldline = 1;
+		$newline = 1;
+		$retval = array();
+		foreach ( $diff->getEdits() as $edit ) {
+			switch ( $edit->getType() ) {
+				case 'add':
+					foreach ( $edit->getClosing() as $line ) {
+						$retval[] = array(
+							'action' => 'add',
+							'new' => $line,
+							'newline' => $newline++
+						);
+					}
+					break;
+				case 'delete':
+					foreach ( $edit->getOrig() as $line ) {
+						$retval[] = array(
+							'action' => 'delete',
+							'old' => $line,
+							'oldline' => $oldline++,
+						);
+					}
+					break;
+				case 'change':
+					foreach ( $edit->getOrig() as $key => $line ) {
+						$retval[] = array(
+							'action' => 'change',
+							'old' => $line,
+							'new' => $edit->getClosing( $key ),
+							'oldline' => $oldline++,
+							'newline' => $newline++,
+						);
+					}
+					break;
+				case 'copy':
+					$oldline += count( $edit->getOrig() );
+					$newline += count( $edit->getOrig() );
+			}
+		}
+
+		return $retval;
+	}
+
+}